CVE-2018-18546: Topthink/framework ThinkPHP SQLi Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-j7g8-3qqg-8cvm
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CVSS 9.8
CWE-89
Published
Advisory Summary

CVE-2018-18546 is a CRITICAL (CVSS 9.8) thinkphp sqli vulnerability vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Topthink/framework libraries in the Packagist ecosystem. The issue involves thinkphp sqli vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2018-18546 at a Glance

CVE Identifier CVE-2018-18546
GHSA Identifier GHSA-j7g8-3qqg-8cvm
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Product Topthink/framework
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2018-18546

To remediate this vulnerability, upgrade all affected Topthink/framework dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

topthink/framework fixed: Latest secure release 
Upgrade topthink/framework to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for topthink/framework

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-18546, inspect your project dependencies for Topthink/framework:

inspect dependencies for topthink/framework

Analyze the terminal output to locate any version of Topthink/framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), where the product constructs all or part of an sql command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended sql command when it is sent to a downstream component. without sufficient removal or quoting of sql syntax in user-controllable inputs, the generated sql query can cause those inputs to be interpreted as sql instead of ordinary user data. In Topthink/framework, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

ThinkPHP 3.2.4 has SQL Injection via the order parameter because the `Library/Think/Db/Driver.class.php` parseOrder function mishandles the key variable.

CVE-2018-18546 Affected Topthink/framework Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
topthink/framework
 Packagist
≤ 3.2.4

References

NVD — CVE-2018-18546 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-18546
Topthink/framework Source Repository REPOSITORY
https://github.com/top-think/framework/issues/2613
Security Fix Commit FIX COMMIT
https://github.com/top-think/thinkphp/commit/9748cb80d2f24c89218f358ca2f5ab88ee33396f
98587329.github.io/2018/10/09/thinkphp... WEB
https://98587329.github.io/2018/10/09/thinkphp%E6%B3%A8%E5%85%A5%E5%88%86%E6%9E%90

Frequently Asked Questions

What is CVE-2018-18546?
CVE-2018-18546 is a security vulnerability in Topthink/framework involving ThinkPHP SQLi Vulnerability under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection').
Which Topthink/framework versions are affected?
Affected versions include releases prior to current release patches across affected packages: topthink/framework.
What version fixes CVE-2018-18546?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is topthink/framework affected?
Yes, topthink/framework is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2018-18546?
CVE-2018-18546 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-18546?
CVE-2018-18546 is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.).
How can I check Packagist dependencies for CVE-2018-18546?
Run the dependency tree command: 'inspect dependencies for topthink/framework'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-j7g8-3qqg-8cvm",
  "modified" : "2023-07-25T17:57:12Z",
  "published" : "2022-05-14T01:53:16Z",
  "aliases" : [ "CVE-2018-18546" ],
  "summary" : "ThinkPHP SQLi Vulnerability",
  "details" : "ThinkPHP 3.2.4 has SQL Injection via the order parameter because the `Library/Think/Db/Driver.class.php` parseOrder function mishandles the key variable.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "topthink/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.2.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-18546"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/top-think/framework/issues/2613"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/top-think/thinkphp/commit/9748cb80d2f24c89218f358ca2f5ab88ee33396f"
  }, {
    "type" : "WEB",
    "url" : "https://98587329.github.io/2018/10/09/thinkphp%E6%B3%A8%E5%85%A5%E5%88%86%E6%9E%90"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-89" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-25T17:57:12Z",
    "nvd_published_at" : "2018-10-21T01:29:00Z"
  }
}